/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package enterprise.web_jpa_war.servlet;

import enterprise.web_jpa_war.entity.Oeuvre;
import enterprise.web_jpa_war.entity.Type;
import enterprise.web_jpa_war.entity.Utilisateur;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import javax.annotation.Resource;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceUnit;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.transaction.UserTransaction;

/**
 *
 * @author Thomaspid
 */
@WebServlet(name = "AddOeuvre", urlPatterns = {"/AddOeuvre"})
public class AddOeuvre extends HttpServlet {

    @PersistenceUnit
    private EntityManagerFactory emf;
    
    @Resource
    private UserTransaction utx;
    
    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        EntityManager em = null;
        try {
            String titre = (String) request.getParameter("titreOeuvre");
            String auteur = (String) request.getParameter("auteur");
            String dateEdition = (String) request.getParameter("dteedition");
            DateFormat formatter = new SimpleDateFormat("mm/dd/yyyy");
            Date dateEd = formatter.parse(dateEdition);
            String genre = (String) request.getParameter("genre");
            String description = (String) request.getParameter("description");
            String typeString = (String) request.getParameter("type");
            Type type = new Type(typeString.toUpperCase(), 30);
            
            Oeuvre newOeuvre = new Oeuvre(titre, auteur, dateEd, genre, description, type);
            
            utx.begin();
            em = emf.createEntityManager();
            em.persist(newOeuvre);
            utx.commit();
        } catch (Exception ex) {
            throw new ServletException(ex);
        } finally {
            if(em != null) {
                em.close();
            }
        }
        //response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet AddOeuvre</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet AddOeuvre at " + request.getContextPath() + "</h1>");
            out.println("<p>Nouvelle oeuvre ajoutee avec succes</p>");
            out.println("<a href='index.jsp'><strong>retour au menu principal</strong></a>");
            out.println("</body>");
            out.println("</html>");
        } finally {            
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
